22443838 has 4 divisors (see below), whose sum is σ = 33665760. Its totient is φ = 11221918.

The previous prime is 22443833. The next prime is 22443847. The reversal of 22443838 is 83834422.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22443833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610958 + ... + 5610961.

It is an arithmetic number, because the mean of its divisors is an integer number (8416440).

Almost surely, 2^22443838 is an apocalyptic number.

22443838 is a deficient number, since it is larger than the sum of its proper divisors (11221922).

22443838 is a wasteful number, since it uses less digits than its factorization.

22443838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11221921.

The product of its digits is 36864, while the sum is 34.

The square root of 22443838 is about 4737.4927968283. The cubic root of 22443838 is about 282.0757219990.

The spelling of 22443838 in words is "twenty-two million, four hundred forty-three thousand, eight hundred thirty-eight".